Practice
Practice sets.
Twenty-four meadows with no date attached, three sets per level. They never change, so you can come back to one, and they do not touch your daily streak. Your progress in each set stays in this browser.
Easy.
Six by six. Every meadow here can be solved with the plain rules Hint knows: a family of 1 alone, a cell between two numbers, and an island already shut in by water.
Medium.
Eight by eight. Marks you have already placed narrow the room left for an island, and Hint reasons from them the same way it reasons from the numbers alone.
Hard.
Ten by ten. More passes of the rules before the meadow opens up.